The City will rent these portable toilets for our various parks and other locations. 2. The Portable toilets will be used in the following ways.Each proposal must be contained in a sealed envelope stating, "Public Restroom Renovations". If the Construction Manager submits a bid, then the Construction Manager must submit the bid to the Tarrant County Purchasing Department Contracts. The project will be subdivided into the following design phases: Concept and Public Engagement,. Schematic Design, Design Development,. Addenda will be posted to the Tarrant County 911 District web page and will be emailed to those that attended the preproposal meeting.